* Correction of rated torque and max. torque due to load fluctuation is not required.However, if ambient temperature exceeds 30℃, be sure to correct the rated torque and max. torque with temperature correction factor shown in the table.MJT,MJT-K's allowable operating temperature is -20℃ to 60℃.
** These are values with max. bore diameter.

Ambient Temperature / Temperature Correction Factor

Ambient Temperature

Temperature Correction Factor

-20℃ to 30℃

1.00

30℃ to 40℃

0.80

40℃ to 60℃

0.70

Details of Shaft Hole

MJT-K

Standard Bore Diameter
D

Keyway

Key

b

t

Nominal Dimension
b x h

Standard
Dimension

Allowance
(JS9)

Standard
Dimension

Allowance

10/11/12

4

±0.0150

1.8

0 ~ +0.1

4 x 4

14/15/16

5

±0.0150

2.3

0 ~ +0.1

5 x 5

18/19/20

6

±0.0150

2.8

0 ~ +0.1

6 x 6

25/28/30

8

±0.0180

3.3

0 ~ +0.2

8 x 7

32/35/38

10

±0.0180

3.3

0 ~ +0.2

10 x 8

40/42

12

±0.0215

3.3

0 ~ +0.2

12 x 8

45

14

±0.0215

3.8

0 ~ +0.2

14 x 9

Sleeve Details

Slip torque

Concerning the sizes shown in the table, please note that the shaft's slip torque is smaller than the max. torque of MJT-C.

Unit : N・m

Part Number

Bore Diameter (mm)

3

4

4.5

5

6

6.35

7

8

9.525

10

11

12

14

15

16

18

19

20

22

24

25

28

30

32

35

38

40

42

45

48

50

55

MJT-14C

0.8

1.4

1.6

3.4

2.6

2.8

3.4

MJT-20C

3.4

4.5

5.5

7.9

8

8.7

9.4

5

5

10

MJT-30C

9.6

9.7

9.8

15

16.9

19.3

19.9

21.4

MJT-40C

7.1

7.3

7.4

9.8

11.8

16.4

17.9

24.5

27

30.5

34

MJT-55C

20.3

21.8

23.4

26.1

27.9

30.6

36.1

41.6

44.1

52.3

63.7

69.6

79.2

125

MJT-65C

27.5

32.2

48.6

57.7

60.7

63.6

68

74.9

80.5

85

90.6

96

230

230

MJT-80C

88

89

92

93

95

97

100

102

110

320

500

500

MJT-95C

241

243

245

247

249

250

250

250

270

500

500

500

These are test values based on the condition of shaft's dimensional allowance: h7, hardness: from 34-40 HRC, and screw tightening torque of the values described in MJT-C dimensional table.

Change in static torsional stiffness due to temperature

This is a value under the condition where the static torsional stiffness at 20°C is 100%.
The change of torsional stiffness within the range of allowable operating temperature is as shown in the graph.
Before using the unit, be aware of the deterioration of responsiveness.